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ublic colleges. Data are in thousands of dollars. rivate Colleges 51.8 42.2 44.0 32.3 44.0 29.6 44.8 36.8 50.5 43.0 Public Col Tin 2 20.3 New 22.8 te the sample mean (in thousand dollars) and sample standa mean thousand standard deviation

ublic colleges. Data are in thousands of dollars. rivate Colleges 51.8 42.2 44.0 32.3 44.0 29.6 44.8 36.8 50.5 43.0 Public Col Tin 2 20.3 New 22.8 te the sample mean (in thousand dollars) and sample standa mean thousand standard deviation

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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You may need to use the appropriate appendix table or technology to answer this question. The increasing annual cost (including tuition, room, board, books, and fees) to attend college has been widely discussed (Time.com). The following random samples show the annual cost of attending private and public colleges. Data are in thousands of dollars Private Colleges 51.8 42.2 44.0 32.3 44.0 29.6 44.8 36.8 50.5 43.0 Public Colleges 20.3 22.0 28.2 15.6 24.1 28.5 22.8 25.8 18.5 25.6 144 21.0 (a) Compute the sample mean (in thousand dollars) and sample standard deviation (in thousand dollars) for private colleges. (Round the standard deviation to two decimal places) sample mean thousand sample standard deviations thousand Compute the sample mean (in thousand dollars) and sample standard deviation (in thousand dollars) for public colleges. (Round the standard deviation to two decimal places.) sample mean thousand thousand sample standard deviation (b) What is the point estimate (in thousand dollars) of the difference between the two population means? (Use Private - Public) thousand Interpret this value in terms of the annual cost (in dollars) of attending private and public colleges We estimate that the mean annual cost to attend private colleges is s thousand more than the mean annual cost to attend public college (c) Develop a 95% confidence interval (in thousand dollars) of the difference between the mean annual cost of attending private and public colleges. (Use Private - Public Round your answers to one decimal place.) thousand to $
Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question. The increasing annual cost (including tuition, room, board, books, and fees) to attend college has been widely discussed (Time.com). The following random samples show the annual cost of attending private and public colleges. Data are in thousands of dollars Private Colleges 51.8 42.2 44.0 32.3 44.0 29.6 44.8 36.8 50.5 43.0 Public Colleges 20.3 22.0 28.2 15.6 24.1 28.5 22.8 25.8 18.5 25.6 144 21.0 (a) Compute the sample mean (in thousand dollars) and sample standard deviation (in thousand dollars) for private colleges. (Round the standard deviation to two decimal places) sample mean thousand sample standard deviations thousand Compute the sample mean (in thousand dollars) and sample standard deviation (in thousand dollars) for public colleges. (Round the standard deviation to two decimal places.) sample mean thousand thousand sample standard deviation (b) What is the point estimate (in thousand dollars) of the difference between the two population means? (Use Private - Public) thousand Interpret this value in terms of the annual cost (in dollars) of attending private and public colleges We estimate that the mean annual cost to attend private colleges is s thousand more than the mean annual cost to attend public college (c) Develop a 95% confidence interval (in thousand dollars) of the difference between the mean annual cost of attending private and public colleges. (Use Private - Public Round your answers to one decimal place.) thousand to $
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